Insurance agency termination

I was working as a sales manager with an insurance company from last 10 years. In the year 2011 I recruited my brother as an agent in my team and given all the required documents. My brother performed quite well and even qualified for foreign tour also. In the year 2014 when the company asked a declaration regarding close relative of the employee i declared that my brother is working under me as an independent agent. Since i declared my relation i left the decision with the company and waited for their decision in this regard, However the company even after declaration not inquired about this all and even the company CEO sent an appreciation letter to my brother in the DEC 2015 with a hope that he will collect more business for the company in future. The situation turned bad when my relation with superiors became worse and he threatened me of dire consequences in the month of MARCH 2016 suddenly my brother code was terminated without any intimation, letter etc and no body in the company replied any mail sent to them. Now i also reigned from the company and already 4 years elapsed after the termination of my brother agency code what should i do and what are the legal remedies are available to my brother. He is losing every month Rs 10000 as a renewal commission for the policies he collected and still serving the customers with same dedication without any monetary benefit.